To link to the entire object, paste this link in email, IM or documentTo embed the entire object, paste this HTML in websiteTo link to this page, paste this link in email, IM or documentTo embed this page, paste this HTML in website

42 ALLAN HANCOCK MONOGRAPHS IN MARINE BIOLOGY
For Galapagos Islands see Garth (1946, p. 421). From shore to 35
fathoms (once in 19-48 fathoms).
Measurements: Males from 4.7 x 7.4(6.3) to 13.8 x 32.4(22.4) mm,
females from 5.1 x 9.3(7.3) to 10.9 x 22.8(16.9) mm, ovigerous females
from 6.6 x 13.1(10.1) to 13.9 x 28.7(21.5) mm, young from 4.3 x 6.9
(5.8) mm.
Color: In life: General color light brown marbled with black; base
of lateral spines tinged with crimson. Legs barred cream and brown.
Underparts white. (J. Crane, of a Chamela Bay, Mexico, specimen
reported in Garth, 1961)
Ecology: Of the 64 stations for which bottom-type data are recorded, 40 per cent were sand, 25 per cent mud, 19 per cent rock, and
16 per cent organic materials (nullipores, corallines, corals, shell, and algae). Shell and nullipores were most frequently found with sand, sand
and shell with mud, and nullipores and gorgonids with rock.
Breeding: Ovigerous females from January through April.
Remarks: This species appears not at all closely related to the
other western American species of the genus and is possibly related to
some of the species of the Portunus longispinus "complex" recently
considered by Stephenson and Rees (in MS), as evidenced by the following common features:
(a) Small fourth and sixth anterolateral teeth; large ninth tooth.
(b) Presence of tuberculate elevations on the carapace.
(c) Markedly sinuous borders of the penultimate segment of the
male abdomen.
Genus CALLINECTES Stimpson
Callinectes Stimpson, 1860, p. 220; type species: C. sapidus Rathbun,
1896, by designation under the plenary powers (Opinion 712). (See
Bull. Zool. Nomencl, 21(5) : 336, November, 1964).
Diagnosis: Male abdomen narrow and "^-"-shaped, i.e., with practically parallel-sided, narrow ultimate and penultimate segments arising
from a broad basal area (See Text-Fig. 2a). Anteroexternal angle of
merus of third maxilliped produced strongly outwards. Wrist of cheliped
without inner spine.

42 ALLAN HANCOCK MONOGRAPHS IN MARINE BIOLOGY
For Galapagos Islands see Garth (1946, p. 421). From shore to 35
fathoms (once in 19-48 fathoms).
Measurements: Males from 4.7 x 7.4(6.3) to 13.8 x 32.4(22.4) mm,
females from 5.1 x 9.3(7.3) to 10.9 x 22.8(16.9) mm, ovigerous females
from 6.6 x 13.1(10.1) to 13.9 x 28.7(21.5) mm, young from 4.3 x 6.9
(5.8) mm.
Color: In life: General color light brown marbled with black; base
of lateral spines tinged with crimson. Legs barred cream and brown.
Underparts white. (J. Crane, of a Chamela Bay, Mexico, specimen
reported in Garth, 1961)
Ecology: Of the 64 stations for which bottom-type data are recorded, 40 per cent were sand, 25 per cent mud, 19 per cent rock, and
16 per cent organic materials (nullipores, corallines, corals, shell, and algae). Shell and nullipores were most frequently found with sand, sand
and shell with mud, and nullipores and gorgonids with rock.
Breeding: Ovigerous females from January through April.
Remarks: This species appears not at all closely related to the
other western American species of the genus and is possibly related to
some of the species of the Portunus longispinus "complex" recently
considered by Stephenson and Rees (in MS), as evidenced by the following common features:
(a) Small fourth and sixth anterolateral teeth; large ninth tooth.
(b) Presence of tuberculate elevations on the carapace.
(c) Markedly sinuous borders of the penultimate segment of the
male abdomen.
Genus CALLINECTES Stimpson
Callinectes Stimpson, 1860, p. 220; type species: C. sapidus Rathbun,
1896, by designation under the plenary powers (Opinion 712). (See
Bull. Zool. Nomencl, 21(5) : 336, November, 1964).
Diagnosis: Male abdomen narrow and "^-"-shaped, i.e., with practically parallel-sided, narrow ultimate and penultimate segments arising
from a broad basal area (See Text-Fig. 2a). Anteroexternal angle of
merus of third maxilliped produced strongly outwards. Wrist of cheliped
without inner spine.